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Finding the Fourth Proportional to 220,352,564.40, 330,130,715.40 and 188,502,068.40

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Solution

The fourth proportional to 220,352,564.40, 330,130,715.40 and 188,502,068.40 is: 282,412,518.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,352,564.40 : 330,130,715.40 = 188,502,068.40 : x
  2. Step 2: Convert to fraction form
    220,352,564.40/330,130,715.40 = 188,502,068.40/x
  3. Step 3: Cross multiply
    220,352,564.40x = 330,130,715.40 × 188,502,068.40
  4. Step 4: Simplify right side
    220,352,564.40x = 62,230,322,695,271,728
  5. Step 5: Solve for x
    x = 62,230,322,695,271,728/220,352,564.40
  6. Step 6: Final answer
    x = 282,412,518.61

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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.