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Finding the Fourth Proportional to 169,472,464.80, 254,232,316.80 and 72,427,401.60

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Solution

The fourth proportional to 169,472,464.80, 254,232,316.80 and 72,427,401.60 is: 108,651,196.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,472,464.80 : 254,232,316.80 = 72,427,401.60 : x
  2. Step 2: Convert to fraction form
    169,472,464.80/254,232,316.80 = 72,427,401.60/x
  3. Step 3: Cross multiply
    169,472,464.80x = 254,232,316.80 × 72,427,401.60
  4. Step 4: Simplify right side
    169,472,464.80x = 18,413,386,108,572,028
  5. Step 5: Solve for x
    x = 18,413,386,108,572,028/169,472,464.80
  6. Step 6: Final answer
    x = 108,651,196.70

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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.