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Finding the Fourth Proportional to 249,900.47, 344,503.95 and 178,155.93

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Solution

The fourth proportional to 249,900.47, 344,503.95 and 178,155.93 is: 245,599.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,900.47 : 344,503.95 = 178,155.93 : x
  2. Step 2: Convert to fraction form
    249,900.47/344,503.95 = 178,155.93/x
  3. Step 3: Cross multiply
    249,900.47x = 344,503.95 × 178,155.93
  4. Step 4: Simplify right side
    249,900.47x = 61,375,421,506.34
  5. Step 5: Solve for x
    x = 61,375,421,506.34/249,900.47
  6. Step 6: Final answer
    x = 245,599.47

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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.