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Finding the Fourth Proportional to 281,875.86, 389,038.41 and 168,698.34

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Solution

The fourth proportional to 281,875.86, 389,038.41 and 168,698.34 is: 232,833.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,875.86 : 389,038.41 = 168,698.34 : x
  2. Step 2: Convert to fraction form
    281,875.86/389,038.41 = 168,698.34/x
  3. Step 3: Cross multiply
    281,875.86x = 389,038.41 × 168,698.34
  4. Step 4: Simplify right side
    281,875.86x = 65,630,133,963.24
  5. Step 5: Solve for x
    x = 65,630,133,963.24/281,875.86
  6. Step 6: Final answer
    x = 232,833.47

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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.