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Finding the Fourth Proportional to 109,698.74, 151,384.37 and 59,397.62

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Solution

The fourth proportional to 109,698.74, 151,384.37 and 59,397.62 is: 81,968.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,698.74 : 151,384.37 = 59,397.62 : x
  2. Step 2: Convert to fraction form
    109,698.74/151,384.37 = 59,397.62/x
  3. Step 3: Cross multiply
    109,698.74x = 151,384.37 × 59,397.62
  4. Step 4: Simplify right side
    109,698.74x = 8,991,871,283.20
  5. Step 5: Solve for x
    x = 8,991,871,283.20/109,698.74
  6. Step 6: Final answer
    x = 81,968.77

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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.