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Finding the Fourth Proportional to 249,312.80, 374,098.80 and 109,085.60

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Solution

The fourth proportional to 249,312.80, 374,098.80 and 109,085.60 is: 163,685.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,312.80 : 374,098.80 = 109,085.60 : x
  2. Step 2: Convert to fraction form
    249,312.80/374,098.80 = 109,085.60/x
  3. Step 3: Cross multiply
    249,312.80x = 374,098.80 × 109,085.60
  4. Step 4: Simplify right side
    249,312.80x = 40,808,792,057.28
  5. Step 5: Solve for x
    x = 40,808,792,057.28/249,312.80
  6. Step 6: Final answer
    x = 163,685.11

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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.