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Finding the Fourth Proportional to 134,539.40, 201,809.10 and 55,807.40

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Solution

The fourth proportional to 134,539.40, 201,809.10 and 55,807.40 is: 83,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,539.40 : 201,809.10 = 55,807.40 : x
  2. Step 2: Convert to fraction form
    134,539.40/201,809.10 = 55,807.40/x
  3. Step 3: Cross multiply
    134,539.40x = 201,809.10 × 55,807.40
  4. Step 4: Simplify right side
    134,539.40x = 11,262,441,167.34
  5. Step 5: Solve for x
    x = 11,262,441,167.34/134,539.40
  6. Step 6: Final answer
    x = 83,711.10

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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.