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Finding the Fourth Proportional to 74,759.34, 103,162.68 and 42,058.68

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Solution

The fourth proportional to 74,759.34, 103,162.68 and 42,058.68 is: 58,038.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,759.34 : 103,162.68 = 42,058.68 : x
  2. Step 2: Convert to fraction form
    74,759.34/103,162.68 = 42,058.68/x
  3. Step 3: Cross multiply
    74,759.34x = 103,162.68 × 42,058.68
  4. Step 4: Simplify right side
    74,759.34x = 4,338,886,146.06
  5. Step 5: Solve for x
    x = 4,338,886,146.06/74,759.34
  6. Step 6: Final answer
    x = 58,038.05

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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.