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Finding the Fourth Proportional to 65,712,885.70, 98,569,328.55 and 48,706,773.70

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Solution

The fourth proportional to 65,712,885.70, 98,569,328.55 and 48,706,773.70 is: 73,060,160.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,712,885.70 : 98,569,328.55 = 48,706,773.70 : x
  2. Step 2: Convert to fraction form
    65,712,885.70/98,569,328.55 = 48,706,773.70/x
  3. Step 3: Cross multiply
    65,712,885.70x = 98,569,328.55 × 48,706,773.70
  4. Step 4: Simplify right side
    65,712,885.70x = 4,800,993,979,445,799
  5. Step 5: Solve for x
    x = 4,800,993,979,445,799/65,712,885.70
  6. Step 6: Final answer
    x = 73,060,160.55

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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.