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Finding the Fourth Proportional to 111,473.76, 153,886.68 and 70,658.25

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Solution

The fourth proportional to 111,473.76, 153,886.68 and 70,658.25 is: 97,541.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,473.76 : 153,886.68 = 70,658.25 : x
  2. Step 2: Convert to fraction form
    111,473.76/153,886.68 = 70,658.25/x
  3. Step 3: Cross multiply
    111,473.76x = 153,886.68 × 70,658.25
  4. Step 4: Simplify right side
    111,473.76x = 10,873,363,507.11
  5. Step 5: Solve for x
    x = 10,873,363,507.11/111,473.76
  6. Step 6: Final answer
    x = 97,541.91

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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.