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Finding the Fourth Proportional to 117,686.28, 176,525.28 and 38,798.40

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Solution

The fourth proportional to 117,686.28, 176,525.28 and 38,798.40 is: 58,196.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,686.28 : 176,525.28 = 38,798.40 : x
  2. Step 2: Convert to fraction form
    117,686.28/176,525.28 = 38,798.40/x
  3. Step 3: Cross multiply
    117,686.28x = 176,525.28 × 38,798.40
  4. Step 4: Simplify right side
    117,686.28x = 6,848,898,423.55
  5. Step 5: Solve for x
    x = 6,848,898,423.55/117,686.28
  6. Step 6: Final answer
    x = 58,196.24

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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.