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Finding the Fourth Proportional to 186,909.54, 257,934.42 and 102,026.67

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Solution

The fourth proportional to 186,909.54, 257,934.42 and 102,026.67 is: 140,796.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,909.54 : 257,934.42 = 102,026.67 : x
  2. Step 2: Convert to fraction form
    186,909.54/257,934.42 = 102,026.67/x
  3. Step 3: Cross multiply
    186,909.54x = 257,934.42 × 102,026.67
  4. Step 4: Simplify right side
    186,909.54x = 26,316,189,950.98
  5. Step 5: Solve for x
    x = 26,316,189,950.98/186,909.54
  6. Step 6: Final answer
    x = 140,796.40

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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.