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Finding the Fourth Proportional to 524,673,208.60, 787,009,812.90 and 161,185,643.80

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Solution

The fourth proportional to 524,673,208.60, 787,009,812.90 and 161,185,643.80 is: 241,778,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,673,208.60 : 787,009,812.90 = 161,185,643.80 : x
  2. Step 2: Convert to fraction form
    524,673,208.60/787,009,812.90 = 161,185,643.80/x
  3. Step 3: Cross multiply
    524,673,208.60x = 787,009,812.90 × 161,185,643.80
  4. Step 4: Simplify right side
    524,673,208.60x = 126,854,683,369,204,048
  5. Step 5: Solve for x
    x = 126,854,683,369,204,048/524,673,208.60
  6. Step 6: Final answer
    x = 241,778,465.70

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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.