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Finding the Fourth Proportional to 249,970.30, 374,955.45 and 109,728.93

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Solution

The fourth proportional to 249,970.30, 374,955.45 and 109,728.93 is: 164,593.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,970.30 : 374,955.45 = 109,728.93 : x
  2. Step 2: Convert to fraction form
    249,970.30/374,955.45 = 109,728.93/x
  3. Step 3: Cross multiply
    249,970.30x = 374,955.45 × 109,728.93
  4. Step 4: Simplify right side
    249,970.30x = 41,143,460,326.17
  5. Step 5: Solve for x
    x = 41,143,460,326.17/249,970.30
  6. Step 6: Final answer
    x = 164,593.40

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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.