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Finding the Fourth Proportional to 155,492.51, 214,597.07 and 87,526.01

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Solution

The fourth proportional to 155,492.51, 214,597.07 and 87,526.01 is: 120,795.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,492.51 : 214,597.07 = 87,526.01 : x
  2. Step 2: Convert to fraction form
    155,492.51/214,597.07 = 87,526.01/x
  3. Step 3: Cross multiply
    155,492.51x = 214,597.07 × 87,526.01
  4. Step 4: Simplify right side
    155,492.51x = 18,782,823,784.18
  5. Step 5: Solve for x
    x = 18,782,823,784.18/155,492.51
  6. Step 6: Final answer
    x = 120,795.69

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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.