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Finding the Fourth Proportional to 111,140.28, 153,332.28 and 70,844.76

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Solution

The fourth proportional to 111,140.28, 153,332.28 and 70,844.76 is: 97,739.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,140.28 : 153,332.28 = 70,844.76 : x
  2. Step 2: Convert to fraction form
    111,140.28/153,332.28 = 70,844.76/x
  3. Step 3: Cross multiply
    111,140.28x = 153,332.28 × 70,844.76
  4. Step 4: Simplify right side
    111,140.28x = 10,862,788,576.85
  5. Step 5: Solve for x
    x = 10,862,788,576.85/111,140.28
  6. Step 6: Final answer
    x = 97,739.44

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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.