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Finding the Fourth Proportional to 186,385.86, 257,215.23 and 101,502.72

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Solution

The fourth proportional to 186,385.86, 257,215.23 and 101,502.72 is: 140,075.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,385.86 : 257,215.23 = 101,502.72 : x
  2. Step 2: Convert to fraction form
    186,385.86/257,215.23 = 101,502.72/x
  3. Step 3: Cross multiply
    186,385.86x = 257,215.23 × 101,502.72
  4. Step 4: Simplify right side
    186,385.86x = 26,108,045,470.43
  5. Step 5: Solve for x
    x = 26,108,045,470.43/186,385.86
  6. Step 6: Final answer
    x = 140,075.25

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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.