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Finding the Fourth Proportional to 111,151.13, 153,374.25 and 63,401.63

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Solution

The fourth proportional to 111,151.13, 153,374.25 and 63,401.63 is: 87,486.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,151.13 : 153,374.25 = 63,401.63 : x
  2. Step 2: Convert to fraction form
    111,151.13/153,374.25 = 63,401.63/x
  3. Step 3: Cross multiply
    111,151.13x = 153,374.25 × 63,401.63
  4. Step 4: Simplify right side
    111,151.13x = 9,724,176,683.16
  5. Step 5: Solve for x
    x = 9,724,176,683.16/111,151.13
  6. Step 6: Final answer
    x = 87,486.08

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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.