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Finding the Fourth Proportional to 101,602.48, 140,124.54 and 61,307.68

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Solution

The fourth proportional to 101,602.48, 140,124.54 and 61,307.68 is: 84,552.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,602.48 : 140,124.54 = 61,307.68 : x
  2. Step 2: Convert to fraction form
    101,602.48/140,124.54 = 61,307.68/x
  3. Step 3: Cross multiply
    101,602.48x = 140,124.54 × 61,307.68
  4. Step 4: Simplify right side
    101,602.48x = 8,590,710,458.47
  5. Step 5: Solve for x
    x = 8,590,710,458.47/101,602.48
  6. Step 6: Final answer
    x = 84,552.17

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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.