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Finding the Fourth Proportional to 186,364.80, 279,547.20 and 166,147.20

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Solution

The fourth proportional to 186,364.80, 279,547.20 and 166,147.20 is: 249,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,364.80 : 279,547.20 = 166,147.20 : x
  2. Step 2: Convert to fraction form
    186,364.80/279,547.20 = 166,147.20/x
  3. Step 3: Cross multiply
    186,364.80x = 279,547.20 × 166,147.20
  4. Step 4: Simplify right side
    186,364.80x = 46,445,984,547.84
  5. Step 5: Solve for x
    x = 46,445,984,547.84/186,364.80
  6. Step 6: Final answer
    x = 249,220.80

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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.