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Finding the Fourth Proportional to 105,254.80, 145,235.52 and 59,934.64

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Solution

The fourth proportional to 105,254.80, 145,235.52 and 59,934.64 is: 82,700.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,254.80 : 145,235.52 = 59,934.64 : x
  2. Step 2: Convert to fraction form
    105,254.80/145,235.52 = 59,934.64/x
  3. Step 3: Cross multiply
    105,254.80x = 145,235.52 × 59,934.64
  4. Step 4: Simplify right side
    105,254.80x = 8,704,638,606.41
  5. Step 5: Solve for x
    x = 8,704,638,606.41/105,254.80
  6. Step 6: Final answer
    x = 82,700.63

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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.