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Finding the Fourth Proportional to 83,030.40, 114,582.24 and 45,305.28

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Solution

The fourth proportional to 83,030.40, 114,582.24 and 45,305.28 is: 62,521.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,030.40 : 114,582.24 = 45,305.28 : x
  2. Step 2: Convert to fraction form
    83,030.40/114,582.24 = 45,305.28/x
  3. Step 3: Cross multiply
    83,030.40x = 114,582.24 × 45,305.28
  4. Step 4: Simplify right side
    83,030.40x = 5,191,180,466.23
  5. Step 5: Solve for x
    x = 5,191,180,466.23/83,030.40
  6. Step 6: Final answer
    x = 62,521.44

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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.