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Finding the Fourth Proportional to 111,567.46, 153,925.08 and 71,304.45

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Solution

The fourth proportional to 111,567.46, 153,925.08 and 71,304.45 is: 98,375.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,567.46 : 153,925.08 = 71,304.45 : x
  2. Step 2: Convert to fraction form
    111,567.46/153,925.08 = 71,304.45/x
  3. Step 3: Cross multiply
    111,567.46x = 153,925.08 × 71,304.45
  4. Step 4: Simplify right side
    111,567.46x = 10,975,543,170.61
  5. Step 5: Solve for x
    x = 10,975,543,170.61/111,567.46
  6. Step 6: Final answer
    x = 98,375.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.