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Finding the Fourth Proportional to 249,562.40, 374,392.20 and 72,075.20

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Solution

The fourth proportional to 249,562.40, 374,392.20 and 72,075.20 is: 108,126.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,562.40 : 374,392.20 = 72,075.20 : x
  2. Step 2: Convert to fraction form
    249,562.40/374,392.20 = 72,075.20/x
  3. Step 3: Cross multiply
    249,562.40x = 374,392.20 × 72,075.20
  4. Step 4: Simplify right side
    249,562.40x = 26,984,392,693.44
  5. Step 5: Solve for x
    x = 26,984,392,693.44/249,562.40
  6. Step 6: Final answer
    x = 108,126.84

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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.