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Finding the Fourth Proportional to 329,865,457.68, 455,293,612.80 and 188,818,441.08

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Solution

The fourth proportional to 329,865,457.68, 455,293,612.80 and 188,818,441.08 is: 260,614,830.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,865,457.68 : 455,293,612.80 = 188,818,441.08 : x
  2. Step 2: Convert to fraction form
    329,865,457.68/455,293,612.80 = 188,818,441.08/x
  3. Step 3: Cross multiply
    329,865,457.68x = 455,293,612.80 × 188,818,441.08
  4. Step 4: Simplify right side
    329,865,457.68x = 85,967,830,202,577,136
  5. Step 5: Solve for x
    x = 85,967,830,202,577,136/329,865,457.68
  6. Step 6: Final answer
    x = 260,614,830.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.