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Finding the Fourth Proportional to 249,668.48, 344,547.84 and 136,501.76

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Solution

The fourth proportional to 249,668.48, 344,547.84 and 136,501.76 is: 188,375.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,668.48 : 344,547.84 = 136,501.76 : x
  2. Step 2: Convert to fraction form
    249,668.48/344,547.84 = 136,501.76/x
  3. Step 3: Cross multiply
    249,668.48x = 344,547.84 × 136,501.76
  4. Step 4: Simplify right side
    249,668.48x = 47,031,386,564.20
  5. Step 5: Solve for x
    x = 47,031,386,564.20/249,668.48
  6. Step 6: Final answer
    x = 188,375.35

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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.