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Finding the Fourth Proportional to 77,235.50, 106,672.48 and 52,041.26

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Solution

The fourth proportional to 77,235.50, 106,672.48 and 52,041.26 is: 71,875.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,235.50 : 106,672.48 = 52,041.26 : x
  2. Step 2: Convert to fraction form
    77,235.50/106,672.48 = 52,041.26/x
  3. Step 3: Cross multiply
    77,235.50x = 106,672.48 × 52,041.26
  4. Step 4: Simplify right side
    77,235.50x = 5,551,370,266.52
  5. Step 5: Solve for x
    x = 5,551,370,266.52/77,235.50
  6. Step 6: Final answer
    x = 71,875.89

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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.