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Finding the Fourth Proportional to 98,971.50, 148,536.90 and 56,303.13

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Solution

The fourth proportional to 98,971.50, 148,536.90 and 56,303.13 is: 84,500.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,971.50 : 148,536.90 = 56,303.13 : x
  2. Step 2: Convert to fraction form
    98,971.50/148,536.90 = 56,303.13/x
  3. Step 3: Cross multiply
    98,971.50x = 148,536.90 × 56,303.13
  4. Step 4: Simplify right side
    98,971.50x = 8,363,092,390.50
  5. Step 5: Solve for x
    x = 8,363,092,390.50/98,971.50
  6. Step 6: Final answer
    x = 84,500.01

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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.