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Finding the Fourth Proportional to 249,568.40, 374,352.60 and 83,356.40

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Solution

The fourth proportional to 249,568.40, 374,352.60 and 83,356.40 is: 125,034.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,568.40 : 374,352.60 = 83,356.40 : x
  2. Step 2: Convert to fraction form
    249,568.40/374,352.60 = 83,356.40/x
  3. Step 3: Cross multiply
    249,568.40x = 374,352.60 × 83,356.40
  4. Step 4: Simplify right side
    249,568.40x = 31,204,685,066.64
  5. Step 5: Solve for x
    x = 31,204,685,066.64/249,568.40
  6. Step 6: Final answer
    x = 125,034.60

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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.