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Finding the Fourth Proportional to 288,045.48, 432,090.90 and 98,596.20

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Solution

The fourth proportional to 288,045.48, 432,090.90 and 98,596.20 is: 147,902.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,045.48 : 432,090.90 = 98,596.20 : x
  2. Step 2: Convert to fraction form
    288,045.48/432,090.90 = 98,596.20/x
  3. Step 3: Cross multiply
    288,045.48x = 432,090.90 × 98,596.20
  4. Step 4: Simplify right side
    288,045.48x = 42,602,520,794.58
  5. Step 5: Solve for x
    x = 42,602,520,794.58/288,045.48
  6. Step 6: Final answer
    x = 147,902.06

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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.