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Finding the Fourth Proportional to 118,521.76, 163,482.96 and 76,012.96

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Solution

The fourth proportional to 118,521.76, 163,482.96 and 76,012.96 is: 104,848.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,521.76 : 163,482.96 = 76,012.96 : x
  2. Step 2: Convert to fraction form
    118,521.76/163,482.96 = 76,012.96/x
  3. Step 3: Cross multiply
    118,521.76x = 163,482.96 × 76,012.96
  4. Step 4: Simplify right side
    118,521.76x = 12,426,823,699.16
  5. Step 5: Solve for x
    x = 12,426,823,699.16/118,521.76
  6. Step 6: Final answer
    x = 104,848.46

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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.