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Finding the Fourth Proportional to 111,154.68, 153,408.06 and 63,397.08

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Solution

The fourth proportional to 111,154.68, 153,408.06 and 63,397.08 is: 87,496.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,154.68 : 153,408.06 = 63,397.08 : x
  2. Step 2: Convert to fraction form
    111,154.68/153,408.06 = 63,397.08/x
  3. Step 3: Cross multiply
    111,154.68x = 153,408.06 × 63,397.08
  4. Step 4: Simplify right side
    111,154.68x = 9,725,623,052.46
  5. Step 5: Solve for x
    x = 9,725,623,052.46/111,154.68
  6. Step 6: Final answer
    x = 87,496.30

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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.