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Finding the Fourth Proportional to 111,194.59, 153,459.53 and 63,455.12

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Solution

The fourth proportional to 111,194.59, 153,459.53 and 63,455.12 is: 87,574.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,194.59 : 153,459.53 = 63,455.12 : x
  2. Step 2: Convert to fraction form
    111,194.59/153,459.53 = 63,455.12/x
  3. Step 3: Cross multiply
    111,194.59x = 153,459.53 × 63,455.12
  4. Step 4: Simplify right side
    111,194.59x = 9,737,792,282.63
  5. Step 5: Solve for x
    x = 9,737,792,282.63/111,194.59
  6. Step 6: Final answer
    x = 87,574.34

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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.