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Finding the Fourth Proportional to 115,523.61, 159,416.88 and 64,526.19

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Solution

The fourth proportional to 115,523.61, 159,416.88 and 64,526.19 is: 89,042.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,523.61 : 159,416.88 = 64,526.19 : x
  2. Step 2: Convert to fraction form
    115,523.61/159,416.88 = 64,526.19/x
  3. Step 3: Cross multiply
    115,523.61x = 159,416.88 × 64,526.19
  4. Step 4: Simplify right side
    115,523.61x = 10,286,563,888.09
  5. Step 5: Solve for x
    x = 10,286,563,888.09/115,523.61
  6. Step 6: Final answer
    x = 89,042.96

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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.