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Finding the Fourth Proportional to 153,533.01, 211,876.02 and 89,014.80

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Solution

The fourth proportional to 153,533.01, 211,876.02 and 89,014.80 is: 122,840.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,533.01 : 211,876.02 = 89,014.80 : x
  2. Step 2: Convert to fraction form
    153,533.01/211,876.02 = 89,014.80/x
  3. Step 3: Cross multiply
    153,533.01x = 211,876.02 × 89,014.80
  4. Step 4: Simplify right side
    153,533.01x = 18,860,101,545.10
  5. Step 5: Solve for x
    x = 18,860,101,545.10/153,533.01
  6. Step 6: Final answer
    x = 122,840.69

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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.