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Finding the Fourth Proportional to 115,047.84, 158,762.52 and 64,063.20

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Solution

The fourth proportional to 115,047.84, 158,762.52 and 64,063.20 is: 88,405.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,047.84 : 158,762.52 = 64,063.20 : x
  2. Step 2: Convert to fraction form
    115,047.84/158,762.52 = 64,063.20/x
  3. Step 3: Cross multiply
    115,047.84x = 158,762.52 × 64,063.20
  4. Step 4: Simplify right side
    115,047.84x = 10,170,835,071.26
  5. Step 5: Solve for x
    x = 10,170,835,071.26/115,047.84
  6. Step 6: Final answer
    x = 88,405.27

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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.