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Finding the Fourth Proportional to 115,574.60, 159,492.49 and 64,587.33

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Solution

The fourth proportional to 115,574.60, 159,492.49 and 64,587.33 is: 89,130.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,574.60 : 159,492.49 = 64,587.33 : x
  2. Step 2: Convert to fraction form
    115,574.60/159,492.49 = 64,587.33/x
  3. Step 3: Cross multiply
    115,574.60x = 159,492.49 × 64,587.33
  4. Step 4: Simplify right side
    115,574.60x = 10,301,193,922.68
  5. Step 5: Solve for x
    x = 10,301,193,922.68/115,574.60
  6. Step 6: Final answer
    x = 89,130.26

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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.