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Finding the Fourth Proportional to 249,969.74, 375,009.69 and 72,484.16

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Solution

The fourth proportional to 249,969.74, 375,009.69 and 72,484.16 is: 108,742.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,969.74 : 375,009.69 = 72,484.16 : x
  2. Step 2: Convert to fraction form
    249,969.74/375,009.69 = 72,484.16/x
  3. Step 3: Cross multiply
    249,969.74x = 375,009.69 × 72,484.16
  4. Step 4: Simplify right side
    249,969.74x = 27,182,262,371.51
  5. Step 5: Solve for x
    x = 27,182,262,371.51/249,969.74
  6. Step 6: Final answer
    x = 108,742.21

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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.