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Finding the Fourth Proportional to 122,492.79, 183,566.79 and 97,421.58

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Solution

The fourth proportional to 122,492.79, 183,566.79 and 97,421.58 is: 145,995.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,492.79 : 183,566.79 = 97,421.58 : x
  2. Step 2: Convert to fraction form
    122,492.79/183,566.79 = 97,421.58/x
  3. Step 3: Cross multiply
    122,492.79x = 183,566.79 × 97,421.58
  4. Step 4: Simplify right side
    122,492.79x = 17,883,366,717.33
  5. Step 5: Solve for x
    x = 17,883,366,717.33/122,492.79
  6. Step 6: Final answer
    x = 145,995.26

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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.