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Finding the Fourth Proportional to 191,774.80, 287,467.80 and 112,848.40

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Solution

The fourth proportional to 191,774.80, 287,467.80 and 112,848.40 is: 169,158.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,774.80 : 287,467.80 = 112,848.40 : x
  2. Step 2: Convert to fraction form
    191,774.80/287,467.80 = 112,848.40/x
  3. Step 3: Cross multiply
    191,774.80x = 287,467.80 × 112,848.40
  4. Step 4: Simplify right side
    191,774.80x = 32,440,281,281.52
  5. Step 5: Solve for x
    x = 32,440,281,281.52/191,774.80
  6. Step 6: Final answer
    x = 169,158.21

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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.