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Finding the Fourth Proportional to 249,075.40, 373,202.70 and 143,710.60

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Solution

The fourth proportional to 249,075.40, 373,202.70 and 143,710.60 is: 215,329.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,075.40 : 373,202.70 = 143,710.60 : x
  2. Step 2: Convert to fraction form
    249,075.40/373,202.70 = 143,710.60/x
  3. Step 3: Cross multiply
    249,075.40x = 373,202.70 × 143,710.60
  4. Step 4: Simplify right side
    249,075.40x = 53,633,183,938.62
  5. Step 5: Solve for x
    x = 53,633,183,938.62/249,075.40
  6. Step 6: Final answer
    x = 215,329.11

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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.