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Finding the Fourth Proportional to 111,483.18, 153,841.41 and 63,741.78

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Solution

The fourth proportional to 111,483.18, 153,841.41 and 63,741.78 is: 87,960.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,483.18 : 153,841.41 = 63,741.78 : x
  2. Step 2: Convert to fraction form
    111,483.18/153,841.41 = 63,741.78/x
  3. Step 3: Cross multiply
    111,483.18x = 153,841.41 × 63,741.78
  4. Step 4: Simplify right side
    111,483.18x = 9,806,125,311.11
  5. Step 5: Solve for x
    x = 9,806,125,311.11/111,483.18
  6. Step 6: Final answer
    x = 87,960.58

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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.