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Finding the Fourth Proportional to 111,925.32, 154,459.08 and 61,624.32

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Solution

The fourth proportional to 111,925.32, 154,459.08 and 61,624.32 is: 85,042.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,925.32 : 154,459.08 = 61,624.32 : x
  2. Step 2: Convert to fraction form
    111,925.32/154,459.08 = 61,624.32/x
  3. Step 3: Cross multiply
    111,925.32x = 154,459.08 × 61,624.32
  4. Step 4: Simplify right side
    111,925.32x = 9,518,435,772.83
  5. Step 5: Solve for x
    x = 9,518,435,772.83/111,925.32
  6. Step 6: Final answer
    x = 85,042.74

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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.