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Finding the Fourth Proportional to 111,214.92, 153,487.59 and 63,475.47

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Solution

The fourth proportional to 111,214.92, 153,487.59 and 63,475.47 is: 87,602.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,214.92 : 153,487.59 = 63,475.47 : x
  2. Step 2: Convert to fraction form
    111,214.92/153,487.59 = 63,475.47/x
  3. Step 3: Cross multiply
    111,214.92x = 153,487.59 × 63,475.47
  4. Step 4: Simplify right side
    111,214.92x = 9,742,696,914.42
  5. Step 5: Solve for x
    x = 9,742,696,914.42/111,214.92
  6. Step 6: Final answer
    x = 87,602.43

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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.