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Finding the Fourth Proportional to 61,900,569.60, 92,630,404.80 and 53,901,398.40

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Solution

The fourth proportional to 61,900,569.60, 92,630,404.80 and 53,901,398.40 is: 80,660,135.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,900,569.60 : 92,630,404.80 = 53,901,398.40 : x
  2. Step 2: Convert to fraction form
    61,900,569.60/92,630,404.80 = 53,901,398.40/x
  3. Step 3: Cross multiply
    61,900,569.60x = 92,630,404.80 × 53,901,398.40
  4. Step 4: Simplify right side
    61,900,569.60x = 4,992,908,353,078,072
  5. Step 5: Solve for x
    x = 4,992,908,353,078,072/61,900,569.60
  6. Step 6: Final answer
    x = 80,660,135.85

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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.