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Finding the Fourth Proportional to 118,653.78, 177,980.64 and 35,547.78

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Solution

The fourth proportional to 118,653.78, 177,980.64 and 35,547.78 is: 53,321.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,653.78 : 177,980.64 = 35,547.78 : x
  2. Step 2: Convert to fraction form
    118,653.78/177,980.64 = 35,547.78/x
  3. Step 3: Cross multiply
    118,653.78x = 177,980.64 × 35,547.78
  4. Step 4: Simplify right side
    118,653.78x = 6,326,816,634.98
  5. Step 5: Solve for x
    x = 6,326,816,634.98/118,653.78
  6. Step 6: Final answer
    x = 53,321.66

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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.