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Finding the Fourth Proportional to 98,569,387.80, 147,854,081.70 and 73,060,219.80

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Solution

The fourth proportional to 98,569,387.80, 147,854,081.70 and 73,060,219.80 is: 109,590,329.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,569,387.80 : 147,854,081.70 = 73,060,219.80 : x
  2. Step 2: Convert to fraction form
    98,569,387.80/147,854,081.70 = 73,060,219.80/x
  3. Step 3: Cross multiply
    98,569,387.80x = 147,854,081.70 × 73,060,219.80
  4. Step 4: Simplify right side
    98,569,387.80x = 10,802,251,707,329,156
  5. Step 5: Solve for x
    x = 10,802,251,707,329,156/98,569,387.80
  6. Step 6: Final answer
    x = 109,590,329.70

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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.