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Finding the Fourth Proportional to 98,668,459.60, 147,582,785.40 and 88,506,782.80

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Solution

The fourth proportional to 98,668,459.60, 147,582,785.40 and 88,506,782.80 is: 132,383,515.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,668,459.60 : 147,582,785.40 = 88,506,782.80 : x
  2. Step 2: Convert to fraction form
    98,668,459.60/147,582,785.40 = 88,506,782.80/x
  3. Step 3: Cross multiply
    98,668,459.60x = 147,582,785.40 × 88,506,782.80
  4. Step 4: Simplify right side
    98,668,459.60x = 13,062,077,532,416,812
  5. Step 5: Solve for x
    x = 13,062,077,532,416,812/98,668,459.60
  6. Step 6: Final answer
    x = 132,383,515.31

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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.