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Finding the Fourth Proportional to 249,871.01, 374,806.52 and 72,378.08

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Solution

The fourth proportional to 249,871.01, 374,806.52 and 72,378.08 is: 108,567.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,871.01 : 374,806.52 = 72,378.08 : x
  2. Step 2: Convert to fraction form
    249,871.01/374,806.52 = 72,378.08/x
  3. Step 3: Cross multiply
    249,871.01x = 374,806.52 × 72,378.08
  4. Step 4: Simplify right side
    249,871.01x = 27,127,774,053.16
  5. Step 5: Solve for x
    x = 27,127,774,053.16/249,871.01
  6. Step 6: Final answer
    x = 108,567.11

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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.