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Finding the Fourth Proportional to 103,358.48, 142,656.93 and 63,063.63

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Solution

The fourth proportional to 103,358.48, 142,656.93 and 63,063.63 is: 87,041.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,358.48 : 142,656.93 = 63,063.63 : x
  2. Step 2: Convert to fraction form
    103,358.48/142,656.93 = 63,063.63/x
  3. Step 3: Cross multiply
    103,358.48x = 142,656.93 × 63,063.63
  4. Step 4: Simplify right side
    103,358.48x = 8,996,463,850.46
  5. Step 5: Solve for x
    x = 8,996,463,850.46/103,358.48
  6. Step 6: Final answer
    x = 87,041.38

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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.