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Finding the Fourth Proportional to 243,528.66, 336,068.43 and 136,098.63

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Solution

The fourth proportional to 243,528.66, 336,068.43 and 136,098.63 is: 187,815.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,528.66 : 336,068.43 = 136,098.63 : x
  2. Step 2: Convert to fraction form
    243,528.66/336,068.43 = 136,098.63/x
  3. Step 3: Cross multiply
    243,528.66x = 336,068.43 × 136,098.63
  4. Step 4: Simplify right side
    243,528.66x = 45,738,452,909.25
  5. Step 5: Solve for x
    x = 45,738,452,909.25/243,528.66
  6. Step 6: Final answer
    x = 187,815.48

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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.