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Finding the Fourth Proportional to 111,459.52, 153,792.70 and 63,702.73

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Solution

The fourth proportional to 111,459.52, 153,792.70 and 63,702.73 is: 87,897.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,459.52 : 153,792.70 = 63,702.73 : x
  2. Step 2: Convert to fraction form
    111,459.52/153,792.70 = 63,702.73/x
  3. Step 3: Cross multiply
    111,459.52x = 153,792.70 × 63,702.73
  4. Step 4: Simplify right side
    111,459.52x = 9,797,014,844.07
  5. Step 5: Solve for x
    x = 9,797,014,844.07/111,459.52
  6. Step 6: Final answer
    x = 87,897.52

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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.