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Finding the Fourth Proportional to 101,762.29, 140,439.09 and 56,444.59

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Solution

The fourth proportional to 101,762.29, 140,439.09 and 56,444.59 is: 77,897.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,762.29 : 140,439.09 = 56,444.59 : x
  2. Step 2: Convert to fraction form
    101,762.29/140,439.09 = 56,444.59/x
  3. Step 3: Cross multiply
    101,762.29x = 140,439.09 × 56,444.59
  4. Step 4: Simplify right side
    101,762.29x = 7,927,026,855.02
  5. Step 5: Solve for x
    x = 7,927,026,855.02/101,762.29
  6. Step 6: Final answer
    x = 77,897.49

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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.