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Finding the Fourth Proportional to 98,363,845.60, 147,640,246.80 and 49,896,426.40

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Solution

The fourth proportional to 98,363,845.60, 147,640,246.80 and 49,896,426.40 is: 74,892,565.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,363,845.60 : 147,640,246.80 = 49,896,426.40 : x
  2. Step 2: Convert to fraction form
    98,363,845.60/147,640,246.80 = 49,896,426.40/x
  3. Step 3: Cross multiply
    98,363,845.60x = 147,640,246.80 × 49,896,426.40
  4. Step 4: Simplify right side
    98,363,845.60x = 7,366,720,708,134,036
  5. Step 5: Solve for x
    x = 7,366,720,708,134,036/98,363,845.60
  6. Step 6: Final answer
    x = 74,892,565.08

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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.