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Finding the Fourth Proportional to 249,543.68, 344,405.40 and 158,870.68

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Solution

The fourth proportional to 249,543.68, 344,405.40 and 158,870.68 is: 219,263.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,543.68 : 344,405.40 = 158,870.68 : x
  2. Step 2: Convert to fraction form
    249,543.68/344,405.40 = 158,870.68/x
  3. Step 3: Cross multiply
    249,543.68x = 344,405.40 × 158,870.68
  4. Step 4: Simplify right side
    249,543.68x = 54,715,920,093.67
  5. Step 5: Solve for x
    x = 54,715,920,093.67/249,543.68
  6. Step 6: Final answer
    x = 219,263.90

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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.