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Finding the Fourth Proportional to 96,539.80, 144,809.70 and 89,541.40

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Solution

The fourth proportional to 96,539.80, 144,809.70 and 89,541.40 is: 134,312.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,539.80 : 144,809.70 = 89,541.40 : x
  2. Step 2: Convert to fraction form
    96,539.80/144,809.70 = 89,541.40/x
  3. Step 3: Cross multiply
    96,539.80x = 144,809.70 × 89,541.40
  4. Step 4: Simplify right side
    96,539.80x = 12,966,463,271.58
  5. Step 5: Solve for x
    x = 12,966,463,271.58/96,539.80
  6. Step 6: Final answer
    x = 134,312.10

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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.