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Finding the Fourth Proportional to 102,571.48, 153,799.51 and 70,588.12

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Solution

The fourth proportional to 102,571.48, 153,799.51 and 70,588.12 is: 105,842.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,571.48 : 153,799.51 = 70,588.12 : x
  2. Step 2: Convert to fraction form
    102,571.48/153,799.51 = 70,588.12/x
  3. Step 3: Cross multiply
    102,571.48x = 153,799.51 × 70,588.12
  4. Step 4: Simplify right side
    102,571.48x = 10,856,418,267.82
  5. Step 5: Solve for x
    x = 10,856,418,267.82/102,571.48
  6. Step 6: Final answer
    x = 105,842.46

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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.