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Finding the Fourth Proportional to 190,276,128, 285,414,192 and 46,668,960

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Solution

The fourth proportional to 190,276,128, 285,414,192 and 46,668,960 is: 70,003,440

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,276,128 : 285,414,192 = 46,668,960 : x
  2. Step 2: Convert to fraction form
    190,276,128/285,414,192 = 46,668,960/x
  3. Step 3: Cross multiply
    190,276,128x = 285,414,192 × 46,668,960
  4. Step 4: Simplify right side
    190,276,128x = 13,319,983,509,880,320
  5. Step 5: Solve for x
    x = 13,319,983,509,880,320/190,276,128
  6. Step 6: Final answer
    x = 70,003,440

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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.