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Finding the Fourth Proportional to 74,854.90, 103,303.65 and 43,026.76

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Solution

The fourth proportional to 74,854.90, 103,303.65 and 43,026.76 is: 59,379.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,854.90 : 103,303.65 = 43,026.76 : x
  2. Step 2: Convert to fraction form
    74,854.90/103,303.65 = 43,026.76/x
  3. Step 3: Cross multiply
    74,854.90x = 103,303.65 × 43,026.76
  4. Step 4: Simplify right side
    74,854.90x = 4,444,821,355.67
  5. Step 5: Solve for x
    x = 4,444,821,355.67/74,854.90
  6. Step 6: Final answer
    x = 59,379.16

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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.