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Finding the Fourth Proportional to 173,624,678.40, 260,478,489.60 and 52,457,318.40

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Solution

The fourth proportional to 173,624,678.40, 260,478,489.60 and 52,457,318.40 is: 78,698,507.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,624,678.40 : 260,478,489.60 = 52,457,318.40 : x
  2. Step 2: Convert to fraction form
    173,624,678.40/260,478,489.60 = 52,457,318.40/x
  3. Step 3: Cross multiply
    173,624,678.40x = 260,478,489.60 × 52,457,318.40
  4. Step 4: Simplify right side
    173,624,678.40x = 13,664,003,065,298,288
  5. Step 5: Solve for x
    x = 13,664,003,065,298,288/173,624,678.40
  6. Step 6: Final answer
    x = 78,698,507.56

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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.