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Finding the Fourth Proportional to 109,509.46, 151,123.28 and 59,208.46

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Solution

The fourth proportional to 109,509.46, 151,123.28 and 59,208.46 is: 81,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,509.46 : 151,123.28 = 59,208.46 : x
  2. Step 2: Convert to fraction form
    109,509.46/151,123.28 = 59,208.46/x
  3. Step 3: Cross multiply
    109,509.46x = 151,123.28 × 59,208.46
  4. Step 4: Simplify right side
    109,509.46x = 8,947,776,678.95
  5. Step 5: Solve for x
    x = 8,947,776,678.95/109,509.46
  6. Step 6: Final answer
    x = 81,707.80

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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.