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Finding the Fourth Proportional to 59,378.40, 89,038.80 and 33,055.20

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Solution

The fourth proportional to 59,378.40, 89,038.80 and 33,055.20 is: 49,566.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,378.40 : 89,038.80 = 33,055.20 : x
  2. Step 2: Convert to fraction form
    59,378.40/89,038.80 = 33,055.20/x
  3. Step 3: Cross multiply
    59,378.40x = 89,038.80 × 33,055.20
  4. Step 4: Simplify right side
    59,378.40x = 2,943,195,341.76
  5. Step 5: Solve for x
    x = 2,943,195,341.76/59,378.40
  6. Step 6: Final answer
    x = 49,566.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.