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Finding the Fourth Proportional to 136,061.64, 187,795.53 and 75,653.46

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Solution

The fourth proportional to 136,061.64, 187,795.53 and 75,653.46 is: 104,418.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,061.64 : 187,795.53 = 75,653.46 : x
  2. Step 2: Convert to fraction form
    136,061.64/187,795.53 = 75,653.46/x
  3. Step 3: Cross multiply
    136,061.64x = 187,795.53 × 75,653.46
  4. Step 4: Simplify right side
    136,061.64x = 14,207,381,617.03
  5. Step 5: Solve for x
    x = 14,207,381,617.03/136,061.64
  6. Step 6: Final answer
    x = 104,418.72

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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.