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Finding the Fourth Proportional to 180,907.61, 249,697.93 and 122,862.58

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Solution

The fourth proportional to 180,907.61, 249,697.93 and 122,862.58 is: 169,581.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,907.61 : 249,697.93 = 122,862.58 : x
  2. Step 2: Convert to fraction form
    180,907.61/249,697.93 = 122,862.58/x
  3. Step 3: Cross multiply
    180,907.61x = 249,697.93 × 122,862.58
  4. Step 4: Simplify right side
    180,907.61x = 30,678,532,685.15
  5. Step 5: Solve for x
    x = 30,678,532,685.15/180,907.61
  6. Step 6: Final answer
    x = 169,581.21

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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.