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Finding the Fourth Proportional to 423,398,802.92, 634,954,961.34 and 161,021,017.60

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Solution

The fourth proportional to 423,398,802.92, 634,954,961.34 and 161,021,017.60 is: 241,477,050.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,398,802.92 : 634,954,961.34 = 161,021,017.60 : x
  2. Step 2: Convert to fraction form
    423,398,802.92/634,954,961.34 = 161,021,017.60/x
  3. Step 3: Cross multiply
    423,398,802.92x = 634,954,961.34 × 161,021,017.60
  4. Step 4: Simplify right side
    423,398,802.92x = 102,241,094,003,548,080
  5. Step 5: Solve for x
    x = 102,241,094,003,548,080/423,398,802.92
  6. Step 6: Final answer
    x = 241,477,050.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.