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Finding the Fourth Proportional to 111,328.14, 153,627.12 and 63,572.16

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Solution

The fourth proportional to 111,328.14, 153,627.12 and 63,572.16 is: 87,726.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,328.14 : 153,627.12 = 63,572.16 : x
  2. Step 2: Convert to fraction form
    111,328.14/153,627.12 = 63,572.16/x
  3. Step 3: Cross multiply
    111,328.14x = 153,627.12 × 63,572.16
  4. Step 4: Simplify right side
    111,328.14x = 9,766,407,852.98
  5. Step 5: Solve for x
    x = 9,766,407,852.98/111,328.14
  6. Step 6: Final answer
    x = 87,726.32

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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.