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Finding the Fourth Proportional to 249,091, 373,639.76 and 82,879

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Solution

The fourth proportional to 249,091, 373,639.76 and 82,879 is: 124,319.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,091 : 373,639.76 = 82,879 : x
  2. Step 2: Convert to fraction form
    249,091/373,639.76 = 82,879/x
  3. Step 3: Cross multiply
    249,091x = 373,639.76 × 82,879
  4. Step 4: Simplify right side
    249,091x = 30,966,889,669.04
  5. Step 5: Solve for x
    x = 30,966,889,669.04/249,091
  6. Step 6: Final answer
    x = 124,319.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.