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Finding the Fourth Proportional to 249,794.87, 374,695.74 and 81,316.04

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Solution

The fourth proportional to 249,794.87, 374,695.74 and 81,316.04 is: 121,975.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,794.87 : 374,695.74 = 81,316.04 : x
  2. Step 2: Convert to fraction form
    249,794.87/374,695.74 = 81,316.04/x
  3. Step 3: Cross multiply
    249,794.87x = 374,695.74 × 81,316.04
  4. Step 4: Simplify right side
    249,794.87x = 30,468,771,908.19
  5. Step 5: Solve for x
    x = 30,468,771,908.19/249,794.87
  6. Step 6: Final answer
    x = 121,975.17

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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.