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Finding the Fourth Proportional to 243,412.61, 365,153.40 and 74,946.96

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Solution

The fourth proportional to 243,412.61, 365,153.40 and 74,946.96 is: 112,431.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,412.61 : 365,153.40 = 74,946.96 : x
  2. Step 2: Convert to fraction form
    243,412.61/365,153.40 = 74,946.96/x
  3. Step 3: Cross multiply
    243,412.61x = 365,153.40 × 74,946.96
  4. Step 4: Simplify right side
    243,412.61x = 27,367,137,263.66
  5. Step 5: Solve for x
    x = 27,367,137,263.66/243,412.61
  6. Step 6: Final answer
    x = 112,431.06

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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.