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Finding the Fourth Proportional to 145,704.36, 201,081.30 and 88,349.16

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Solution

The fourth proportional to 145,704.36, 201,081.30 and 88,349.16 is: 121,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,704.36 : 201,081.30 = 88,349.16 : x
  2. Step 2: Convert to fraction form
    145,704.36/201,081.30 = 88,349.16/x
  3. Step 3: Cross multiply
    145,704.36x = 201,081.30 × 88,349.16
  4. Step 4: Simplify right side
    145,704.36x = 17,765,363,946.71
  5. Step 5: Solve for x
    x = 17,765,363,946.71/145,704.36
  6. Step 6: Final answer
    x = 121,927.47

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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.