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Finding the Fourth Proportional to 186,369.40, 279,554.10 and 127,320.40

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Solution

The fourth proportional to 186,369.40, 279,554.10 and 127,320.40 is: 190,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,369.40 : 279,554.10 = 127,320.40 : x
  2. Step 2: Convert to fraction form
    186,369.40/279,554.10 = 127,320.40/x
  3. Step 3: Cross multiply
    186,369.40x = 279,554.10 × 127,320.40
  4. Step 4: Simplify right side
    186,369.40x = 35,592,939,833.64
  5. Step 5: Solve for x
    x = 35,592,939,833.64/186,369.40
  6. Step 6: Final answer
    x = 190,980.60

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1.5x scale

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.