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Finding the Fourth Proportional to 99,270.80, 148,925.40 and 29,152.40

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Solution

The fourth proportional to 99,270.80, 148,925.40 and 29,152.40 is: 43,734.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,270.80 : 148,925.40 = 29,152.40 : x
  2. Step 2: Convert to fraction form
    99,270.80/148,925.40 = 29,152.40/x
  3. Step 3: Cross multiply
    99,270.80x = 148,925.40 × 29,152.40
  4. Step 4: Simplify right side
    99,270.80x = 4,341,532,830.96
  5. Step 5: Solve for x
    x = 4,341,532,830.96/99,270.80
  6. Step 6: Final answer
    x = 43,734.24

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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.