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Finding the Fourth Proportional to 82,899,346.80, 124,257,781.80 and 29,018,924.40

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Solution

The fourth proportional to 82,899,346.80, 124,257,781.80 and 29,018,924.40 is: 43,496,448.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,899,346.80 : 124,257,781.80 = 29,018,924.40 : x
  2. Step 2: Convert to fraction form
    82,899,346.80/124,257,781.80 = 29,018,924.40/x
  3. Step 3: Cross multiply
    82,899,346.80x = 124,257,781.80 × 29,018,924.40
  4. Step 4: Simplify right side
    82,899,346.80x = 3,605,827,176,165,895.50
  5. Step 5: Solve for x
    x = 3,605,827,176,165,895.50/82,899,346.80
  6. Step 6: Final answer
    x = 43,496,448.59

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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.