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Finding the Fourth Proportional to 75,866.25, 104,698.71 and 42,332.25

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Solution

The fourth proportional to 75,866.25, 104,698.71 and 42,332.25 is: 58,420.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,866.25 : 104,698.71 = 42,332.25 : x
  2. Step 2: Convert to fraction form
    75,866.25/104,698.71 = 42,332.25/x
  3. Step 3: Cross multiply
    75,866.25x = 104,698.71 × 42,332.25
  4. Step 4: Simplify right side
    75,866.25x = 4,432,131,966.40
  5. Step 5: Solve for x
    x = 4,432,131,966.40/75,866.25
  6. Step 6: Final answer
    x = 58,420.34

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1.5x scale

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.