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Finding the Fourth Proportional to 111,710.64, 154,167.66 and 63,962.76

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Solution

The fourth proportional to 111,710.64, 154,167.66 and 63,962.76 is: 88,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,710.64 : 154,167.66 = 63,962.76 : x
  2. Step 2: Convert to fraction form
    111,710.64/154,167.66 = 63,962.76/x
  3. Step 3: Cross multiply
    111,710.64x = 154,167.66 × 63,962.76
  4. Step 4: Simplify right side
    111,710.64x = 9,860,989,036.34
  5. Step 5: Solve for x
    x = 9,860,989,036.34/111,710.64
  6. Step 6: Final answer
    x = 88,272.60

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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.