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Finding the Fourth Proportional to 290,492.16, 435,582.72 and 124,189.44

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Solution

The fourth proportional to 290,492.16, 435,582.72 and 124,189.44 is: 186,217.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,492.16 : 435,582.72 = 124,189.44 : x
  2. Step 2: Convert to fraction form
    290,492.16/435,582.72 = 124,189.44/x
  3. Step 3: Cross multiply
    290,492.16x = 435,582.72 × 124,189.44
  4. Step 4: Simplify right side
    290,492.16x = 54,094,774,070.48
  5. Step 5: Solve for x
    x = 54,094,774,070.48/290,492.16
  6. Step 6: Final answer
    x = 186,217.67

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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.