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Finding the Fourth Proportional to 59,009.40, 81,385.02 and 54,089.46

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Solution

The fourth proportional to 59,009.40, 81,385.02 and 54,089.46 is: 74,599.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,009.40 : 81,385.02 = 54,089.46 : x
  2. Step 2: Convert to fraction form
    59,009.40/81,385.02 = 54,089.46/x
  3. Step 3: Cross multiply
    59,009.40x = 81,385.02 × 54,089.46
  4. Step 4: Simplify right side
    59,009.40x = 4,402,071,783.89
  5. Step 5: Solve for x
    x = 4,402,071,783.89/59,009.40
  6. Step 6: Final answer
    x = 74,599.50

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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.