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Finding the Fourth Proportional to 98,784,420.60, 148,176,630.90 and 93,241,687.80

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Solution

The fourth proportional to 98,784,420.60, 148,176,630.90 and 93,241,687.80 is: 139,862,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,784,420.60 : 148,176,630.90 = 93,241,687.80 : x
  2. Step 2: Convert to fraction form
    98,784,420.60/148,176,630.90 = 93,241,687.80/x
  3. Step 3: Cross multiply
    98,784,420.60x = 148,176,630.90 × 93,241,687.80
  4. Step 4: Simplify right side
    98,784,420.60x = 13,816,239,157,633,634
  5. Step 5: Solve for x
    x = 13,816,239,157,633,634/98,784,420.60
  6. Step 6: Final answer
    x = 139,862,531.70

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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.