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Finding the Fourth Proportional to 291,533.59, 402,178.89 and 170,600.70

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Solution

The fourth proportional to 291,533.59, 402,178.89 and 170,600.70 is: 235,348.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,533.59 : 402,178.89 = 170,600.70 : x
  2. Step 2: Convert to fraction form
    291,533.59/402,178.89 = 170,600.70/x
  3. Step 3: Cross multiply
    291,533.59x = 402,178.89 × 170,600.70
  4. Step 4: Simplify right side
    291,533.59x = 68,612,000,159.22
  5. Step 5: Solve for x
    x = 68,612,000,159.22/291,533.59
  6. Step 6: Final answer
    x = 235,348.52

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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.