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Finding the Fourth Proportional to 249,916.40, 344,525.87 and 178,171.87

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Solution

The fourth proportional to 249,916.40, 344,525.87 and 178,171.87 is: 245,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,916.40 : 344,525.87 = 178,171.87 : x
  2. Step 2: Convert to fraction form
    249,916.40/344,525.87 = 178,171.87/x
  3. Step 3: Cross multiply
    249,916.40x = 344,525.87 × 178,171.87
  4. Step 4: Simplify right side
    249,916.40x = 61,384,816,798.65
  5. Step 5: Solve for x
    x = 61,384,816,798.65/249,916.40
  6. Step 6: Final answer
    x = 245,621.40

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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.