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Finding the Fourth Proportional to 74,332.59, 102,579.05 and 40,341.08

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Solution

The fourth proportional to 74,332.59, 102,579.05 and 40,341.08 is: 55,670.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,332.59 : 102,579.05 = 40,341.08 : x
  2. Step 2: Convert to fraction form
    74,332.59/102,579.05 = 40,341.08/x
  3. Step 3: Cross multiply
    74,332.59x = 102,579.05 × 40,341.08
  4. Step 4: Simplify right side
    74,332.59x = 4,138,149,662.37
  5. Step 5: Solve for x
    x = 4,138,149,662.37/74,332.59
  6. Step 6: Final answer
    x = 55,670.73

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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.