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Finding the Fourth Proportional to 459,007.60, 688,511.40 and 122,047.60

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Solution

The fourth proportional to 459,007.60, 688,511.40 and 122,047.60 is: 183,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,007.60 : 688,511.40 = 122,047.60 : x
  2. Step 2: Convert to fraction form
    459,007.60/688,511.40 = 122,047.60/x
  3. Step 3: Cross multiply
    459,007.60x = 688,511.40 × 122,047.60
  4. Step 4: Simplify right side
    459,007.60x = 84,031,163,942.64
  5. Step 5: Solve for x
    x = 84,031,163,942.64/459,007.60
  6. Step 6: Final answer
    x = 183,071.40

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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.