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Finding the Fourth Proportional to 202,088.40, 302,695.20 and 108,484.80

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Solution

The fourth proportional to 202,088.40, 302,695.20 and 108,484.80 is: 162,492.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,088.40 : 302,695.20 = 108,484.80 : x
  2. Step 2: Convert to fraction form
    202,088.40/302,695.20 = 108,484.80/x
  3. Step 3: Cross multiply
    202,088.40x = 302,695.20 × 108,484.80
  4. Step 4: Simplify right side
    202,088.40x = 32,837,828,232.96
  5. Step 5: Solve for x
    x = 32,837,828,232.96/202,088.40
  6. Step 6: Final answer
    x = 162,492.40

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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.