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Finding the Fourth Proportional to 117,342.30, 176,013.45 and 70,686.30

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Solution

The fourth proportional to 117,342.30, 176,013.45 and 70,686.30 is: 106,029.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,342.30 : 176,013.45 = 70,686.30 : x
  2. Step 2: Convert to fraction form
    117,342.30/176,013.45 = 70,686.30/x
  3. Step 3: Cross multiply
    117,342.30x = 176,013.45 × 70,686.30
  4. Step 4: Simplify right side
    117,342.30x = 12,441,739,530.74
  5. Step 5: Solve for x
    x = 12,441,739,530.74/117,342.30
  6. Step 6: Final answer
    x = 106,029.45

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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.