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Finding the Fourth Proportional to 61,192,587.60, 91,788,881.40 and 57,602,408.40

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Solution

The fourth proportional to 61,192,587.60, 91,788,881.40 and 57,602,408.40 is: 86,403,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,192,587.60 : 91,788,881.40 = 57,602,408.40 : x
  2. Step 2: Convert to fraction form
    61,192,587.60/91,788,881.40 = 57,602,408.40/x
  3. Step 3: Cross multiply
    61,192,587.60x = 91,788,881.40 × 57,602,408.40
  4. Step 4: Simplify right side
    61,192,587.60x = 5,287,260,632,981,964
  5. Step 5: Solve for x
    x = 5,287,260,632,981,964/61,192,587.60
  6. Step 6: Final answer
    x = 86,403,612.60

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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.