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Finding the Fourth Proportional to 249,572.56, 344,409.30 and 136,395.28

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Solution

The fourth proportional to 249,572.56, 344,409.30 and 136,395.28 is: 188,225.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,572.56 : 344,409.30 = 136,395.28 : x
  2. Step 2: Convert to fraction form
    249,572.56/344,409.30 = 136,395.28/x
  3. Step 3: Cross multiply
    249,572.56x = 344,409.30 × 136,395.28
  4. Step 4: Simplify right side
    249,572.56x = 46,975,802,908.10
  5. Step 5: Solve for x
    x = 46,975,802,908.10/249,572.56
  6. Step 6: Final answer
    x = 188,225.03

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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.