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Finding the Fourth Proportional to 61,662,978.68, 85,088,045.09 and 34,154,017.88

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Solution

The fourth proportional to 61,662,978.68, 85,088,045.09 and 34,154,017.88 is: 47,128,742.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,662,978.68 : 85,088,045.09 = 34,154,017.88 : x
  2. Step 2: Convert to fraction form
    61,662,978.68/85,088,045.09 = 34,154,017.88/x
  3. Step 3: Cross multiply
    61,662,978.68x = 85,088,045.09 × 34,154,017.88
  4. Step 4: Simplify right side
    61,662,978.68x = 2,906,098,613,038,051
  5. Step 5: Solve for x
    x = 2,906,098,613,038,051/61,662,978.68
  6. Step 6: Final answer
    x = 47,128,742.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.