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Finding the Fourth Proportional to 143,798.10, 215,697.15 and 101,807.70

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Solution

The fourth proportional to 143,798.10, 215,697.15 and 101,807.70 is: 152,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,798.10 : 215,697.15 = 101,807.70 : x
  2. Step 2: Convert to fraction form
    143,798.10/215,697.15 = 101,807.70/x
  3. Step 3: Cross multiply
    143,798.10x = 215,697.15 × 101,807.70
  4. Step 4: Simplify right side
    143,798.10x = 21,959,630,738.06
  5. Step 5: Solve for x
    x = 21,959,630,738.06/143,798.10
  6. Step 6: Final answer
    x = 152,711.55

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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.