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Finding the Fourth Proportional to 249,683.76, 345,020.01 and 177,939.21

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Solution

The fourth proportional to 249,683.76, 345,020.01 and 177,939.21 is: 245,881.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,683.76 : 345,020.01 = 177,939.21 : x
  2. Step 2: Convert to fraction form
    249,683.76/345,020.01 = 177,939.21/x
  3. Step 3: Cross multiply
    249,683.76x = 345,020.01 × 177,939.21
  4. Step 4: Simplify right side
    249,683.76x = 61,392,588,013.59
  5. Step 5: Solve for x
    x = 61,392,588,013.59/249,683.76
  6. Step 6: Final answer
    x = 245,881.38

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1.5x scale

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.