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Finding the Fourth Proportional to 249,798.94, 344,722.53 and 136,621.69

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Solution

The fourth proportional to 249,798.94, 344,722.53 and 136,621.69 is: 188,537.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,798.94 : 344,722.53 = 136,621.69 : x
  2. Step 2: Convert to fraction form
    249,798.94/344,722.53 = 136,621.69/x
  3. Step 3: Cross multiply
    249,798.94x = 344,722.53 × 136,621.69
  4. Step 4: Simplify right side
    249,798.94x = 47,096,574,280.20
  5. Step 5: Solve for x
    x = 47,096,574,280.20/249,798.94
  6. Step 6: Final answer
    x = 188,537.93

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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.