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Finding the Fourth Proportional to 249,147.95, 343,842.53 and 141,752.48

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Solution

The fourth proportional to 249,147.95, 343,842.53 and 141,752.48 is: 195,628.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,147.95 : 343,842.53 = 141,752.48 : x
  2. Step 2: Convert to fraction form
    249,147.95/343,842.53 = 141,752.48/x
  3. Step 3: Cross multiply
    249,147.95x = 343,842.53 × 141,752.48
  4. Step 4: Simplify right side
    249,147.95x = 48,740,528,929.00
  5. Step 5: Solve for x
    x = 48,740,528,929.00/249,147.95
  6. Step 6: Final answer
    x = 195,628.86

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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.