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Finding the Fourth Proportional to 249,511.86, 374,416.02 and 91,851.03

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Solution

The fourth proportional to 249,511.86, 374,416.02 and 91,851.03 is: 137,831.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,511.86 : 374,416.02 = 91,851.03 : x
  2. Step 2: Convert to fraction form
    249,511.86/374,416.02 = 91,851.03/x
  3. Step 3: Cross multiply
    249,511.86x = 374,416.02 × 91,851.03
  4. Step 4: Simplify right side
    249,511.86x = 34,390,497,085.50
  5. Step 5: Solve for x
    x = 34,390,497,085.50/249,511.86
  6. Step 6: Final answer
    x = 137,831.11

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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.