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Finding the Fourth Proportional to 98,986,147.80, 148,479,221.70 and 88,572,528.60

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Solution

The fourth proportional to 98,986,147.80, 148,479,221.70 and 88,572,528.60 is: 132,858,792.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,986,147.80 : 148,479,221.70 = 88,572,528.60 : x
  2. Step 2: Convert to fraction form
    98,986,147.80/148,479,221.70 = 88,572,528.60/x
  3. Step 3: Cross multiply
    98,986,147.80x = 148,479,221.70 × 88,572,528.60
  4. Step 4: Simplify right side
    98,986,147.80x = 13,151,180,110,528,988
  5. Step 5: Solve for x
    x = 13,151,180,110,528,988/98,986,147.80
  6. Step 6: Final answer
    x = 132,858,792.90

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1.5x scale

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.