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Finding the Fourth Proportional to 255,783.18, 352,983.42 and 141,065.94

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Solution

The fourth proportional to 255,783.18, 352,983.42 and 141,065.94 is: 194,672.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,783.18 : 352,983.42 = 141,065.94 : x
  2. Step 2: Convert to fraction form
    255,783.18/352,983.42 = 141,065.94/x
  3. Step 3: Cross multiply
    255,783.18x = 352,983.42 × 141,065.94
  4. Step 4: Simplify right side
    255,783.18x = 49,793,937,946.71
  5. Step 5: Solve for x
    x = 49,793,937,946.71/255,783.18
  6. Step 6: Final answer
    x = 194,672.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.