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Finding the Fourth Proportional to 243,312.32, 364,857.28 and 74,773.94

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Solution

The fourth proportional to 243,312.32, 364,857.28 and 74,773.94 is: 112,126.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,312.32 : 364,857.28 = 74,773.94 : x
  2. Step 2: Convert to fraction form
    243,312.32/364,857.28 = 74,773.94/x
  3. Step 3: Cross multiply
    243,312.32x = 364,857.28 × 74,773.94
  4. Step 4: Simplify right side
    243,312.32x = 27,281,814,352.06
  5. Step 5: Solve for x
    x = 27,281,814,352.06/243,312.32
  6. Step 6: Final answer
    x = 112,126.73

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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.