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Finding the Fourth Proportional to 249,465.83, 344,165.15 and 153,806.45

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Solution

The fourth proportional to 249,465.83, 344,165.15 and 153,806.45 is: 212,192.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,465.83 : 344,165.15 = 153,806.45 : x
  2. Step 2: Convert to fraction form
    249,465.83/344,165.15 = 153,806.45/x
  3. Step 3: Cross multiply
    249,465.83x = 344,165.15 × 153,806.45
  4. Step 4: Simplify right side
    249,465.83x = 52,934,818,598.91
  5. Step 5: Solve for x
    x = 52,934,818,598.91/249,465.83
  6. Step 6: Final answer
    x = 212,192.67

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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.