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Finding the Fourth Proportional to 249,804.45, 374,755.82 and 72,312.93

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Solution

The fourth proportional to 249,804.45, 374,755.82 and 72,312.93 is: 108,483.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,804.45 : 374,755.82 = 72,312.93 : x
  2. Step 2: Convert to fraction form
    249,804.45/374,755.82 = 72,312.93/x
  3. Step 3: Cross multiply
    249,804.45x = 374,755.82 × 72,312.93
  4. Step 4: Simplify right side
    249,804.45x = 27,099,691,017.19
  5. Step 5: Solve for x
    x = 27,099,691,017.19/249,804.45
  6. Step 6: Final answer
    x = 108,483.62

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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.