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Finding the Fourth Proportional to 315,552,615.60, 473,104,974.60 and 143,112,039.60

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Solution

The fourth proportional to 315,552,615.60, 473,104,974.60 and 143,112,039.60 is: 214,566,492.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,552,615.60 : 473,104,974.60 = 143,112,039.60 : x
  2. Step 2: Convert to fraction form
    315,552,615.60/473,104,974.60 = 143,112,039.60/x
  3. Step 3: Cross multiply
    315,552,615.60x = 473,104,974.60 × 143,112,039.60
  4. Step 4: Simplify right side
    315,552,615.60x = 67,707,017,859,912,192
  5. Step 5: Solve for x
    x = 67,707,017,859,912,192/315,552,615.60
  6. Step 6: Final answer
    x = 214,566,492.28

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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.