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Finding the Fourth Proportional to 209,952,545.80, 314,928,818.70 and 94,940,840.20

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Solution

The fourth proportional to 209,952,545.80, 314,928,818.70 and 94,940,840.20 is: 142,411,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,545.80 : 314,928,818.70 = 94,940,840.20 : x
  2. Step 2: Convert to fraction form
    209,952,545.80/314,928,818.70 = 94,940,840.20/x
  3. Step 3: Cross multiply
    209,952,545.80x = 314,928,818.70 × 94,940,840.20
  4. Step 4: Simplify right side
    209,952,545.80x = 29,899,606,650,571,472
  5. Step 5: Solve for x
    x = 29,899,606,650,571,472/209,952,545.80
  6. Step 6: Final answer
    x = 142,411,260.30

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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.