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Finding the Fourth Proportional to 285,251.04, 427,643.28 and 107,656.92

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Solution

The fourth proportional to 285,251.04, 427,643.28 and 107,656.92 is: 161,397.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,251.04 : 427,643.28 = 107,656.92 : x
  2. Step 2: Convert to fraction form
    285,251.04/427,643.28 = 107,656.92/x
  3. Step 3: Cross multiply
    285,251.04x = 427,643.28 × 107,656.92
  4. Step 4: Simplify right side
    285,251.04x = 46,038,758,383.50
  5. Step 5: Solve for x
    x = 46,038,758,383.50/285,251.04
  6. Step 6: Final answer
    x = 161,397.34

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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.