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Finding the Fourth Proportional to 180,943.52, 249,706.06 and 100,368.42

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Solution

The fourth proportional to 180,943.52, 249,706.06 and 100,368.42 is: 138,510.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,943.52 : 249,706.06 = 100,368.42 : x
  2. Step 2: Convert to fraction form
    180,943.52/249,706.06 = 100,368.42/x
  3. Step 3: Cross multiply
    180,943.52x = 249,706.06 × 100,368.42
  4. Step 4: Simplify right side
    180,943.52x = 25,062,602,706.63
  5. Step 5: Solve for x
    x = 25,062,602,706.63/180,943.52
  6. Step 6: Final answer
    x = 138,510.64

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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.