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Finding the Fourth Proportional to 185,883.12, 278,807.58 and 61,224.12

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Solution

The fourth proportional to 185,883.12, 278,807.58 and 61,224.12 is: 91,830.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,883.12 : 278,807.58 = 61,224.12 : x
  2. Step 2: Convert to fraction form
    185,883.12/278,807.58 = 61,224.12/x
  3. Step 3: Cross multiply
    185,883.12x = 278,807.58 × 61,224.12
  4. Step 4: Simplify right side
    185,883.12x = 17,069,748,734.83
  5. Step 5: Solve for x
    x = 17,069,748,734.83/185,883.12
  6. Step 6: Final answer
    x = 91,830.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.