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Finding the Fourth Proportional to 115,802.28, 158,347.91 and 115,802.28

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Solution

The fourth proportional to 115,802.28, 158,347.91 and 115,802.28 is: 158,347.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,802.28 : 158,347.91 = 115,802.28 : x
  2. Step 2: Convert to fraction form
    115,802.28/158,347.91 = 115,802.28/x
  3. Step 3: Cross multiply
    115,802.28x = 158,347.91 × 115,802.28
  4. Step 4: Simplify right side
    115,802.28x = 18,337,048,432.22
  5. Step 5: Solve for x
    x = 18,337,048,432.22/115,802.28
  6. Step 6: Final answer
    x = 158,347.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.