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Finding the Fourth Proportional to 105,038.44, 144,948.42 and 57,290.92

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Solution

The fourth proportional to 105,038.44, 144,948.42 and 57,290.92 is: 79,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,038.44 : 144,948.42 = 57,290.92 : x
  2. Step 2: Convert to fraction form
    105,038.44/144,948.42 = 57,290.92/x
  3. Step 3: Cross multiply
    105,038.44x = 144,948.42 × 57,290.92
  4. Step 4: Simplify right side
    105,038.44x = 8,304,228,334.35
  5. Step 5: Solve for x
    x = 8,304,228,334.35/105,038.44
  6. Step 6: Final answer
    x = 79,058.95

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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.