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Finding the Fourth Proportional to 75,038.76, 103,549.14 and 41,040.45

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Solution

The fourth proportional to 75,038.76, 103,549.14 and 41,040.45 is: 56,633.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,038.76 : 103,549.14 = 41,040.45 : x
  2. Step 2: Convert to fraction form
    75,038.76/103,549.14 = 41,040.45/x
  3. Step 3: Cross multiply
    75,038.76x = 103,549.14 × 41,040.45
  4. Step 4: Simplify right side
    75,038.76x = 4,249,703,302.71
  5. Step 5: Solve for x
    x = 4,249,703,302.71/75,038.76
  6. Step 6: Final answer
    x = 56,633.44

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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.