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Finding the Fourth Proportional to 143,574.66, 215,409.95 and 63,601.77

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Solution

The fourth proportional to 143,574.66, 215,409.95 and 63,601.77 is: 95,423.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,574.66 : 215,409.95 = 63,601.77 : x
  2. Step 2: Convert to fraction form
    143,574.66/215,409.95 = 63,601.77/x
  3. Step 3: Cross multiply
    143,574.66x = 215,409.95 × 63,601.77
  4. Step 4: Simplify right side
    143,574.66x = 13,700,453,777.60
  5. Step 5: Solve for x
    x = 13,700,453,777.60/143,574.66
  6. Step 6: Final answer
    x = 95,423.90

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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.