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Finding the Fourth Proportional to 162,176.40, 242,681.40 and 109,688.40

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Solution

The fourth proportional to 162,176.40, 242,681.40 and 109,688.40 is: 164,138.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,176.40 : 242,681.40 = 109,688.40 : x
  2. Step 2: Convert to fraction form
    162,176.40/242,681.40 = 109,688.40/x
  3. Step 3: Cross multiply
    162,176.40x = 242,681.40 × 109,688.40
  4. Step 4: Simplify right side
    162,176.40x = 26,619,334,475.76
  5. Step 5: Solve for x
    x = 26,619,334,475.76/162,176.40
  6. Step 6: Final answer
    x = 164,138.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.