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Finding the Fourth Proportional to 249,950.25, 344,931.35 and 136,773

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Solution

The fourth proportional to 249,950.25, 344,931.35 and 136,773 is: 188,746.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,950.25 : 344,931.35 = 136,773 : x
  2. Step 2: Convert to fraction form
    249,950.25/344,931.35 = 136,773/x
  3. Step 3: Cross multiply
    249,950.25x = 344,931.35 × 136,773
  4. Step 4: Simplify right side
    249,950.25x = 47,177,294,849.69
  5. Step 5: Solve for x
    x = 47,177,294,849.69/249,950.25
  6. Step 6: Final answer
    x = 188,746.74

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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.